<?php
/**
 * @author       JoomWorker
 * @email        info@joomla.work
 * @url          http://www.joomla.work
 * @copyright    Copyright (c) 2010 - 2019 JoomWorker
 * @license      GNU General Public License version 2 or later
 * @date         2019/01/01 09:30
 */

//no direct accees
defined('_JEXEC') or die('restricted access');

class JwpagefactoryAddonInstagram_gallery extends JwpagefactoryAddons
{
	public static $assets = array();

	public function render()
	{
		$settings = $this->addon->settings;

		$class = (isset($settings->class) && $settings->class) ? $settings->class : '';
		$heading_selector = (isset($settings->heading_selector) && $settings->heading_selector) ? $settings->heading_selector : 'h3';
		$title = (isset($settings->title) && $settings->title) ? $settings->title : '';
		$count = (isset($settings->limit) && $settings->limit) ? $settings->limit : 0;
		$show_stats = (isset($settings->show_stats) && $settings->show_stats) ? $settings->show_stats : array();
		$thumb_per_row = (isset($settings->thumb_per_row) && $settings->thumb_per_row) ? $settings->thumb_per_row : 4;

		$layout_type = (isset($settings->layout_type) && $settings->layout_type) ? $settings->layout_type : 'default';

		$output = '';
		$output .= '<div class="jwpf-addon jwpf-addon-instagram-gallery ' . $class . ' layout-' . $layout_type . '">';

		if ($title) {
			$output .= '<div class="jwpf-addon-instagram-text-wrap">';
			$output .= '<' . $heading_selector . ' class="jwpf-addon-title">' . $title . '</' . $heading_selector . '>';
			$output .= '</div>'; //.jwpf-addon-instagram-text-wrap
		}

		$items = $this->getImages();
		$total_items = count($items);

		if (!$items) {
			$output .= '<p class="alert alert-warning">' . JText::_('COM_JWPAGEFACTORY_ADDON_INSTAGRAM_ERORR') . '</p>';
		} else {
			$output .= '<ul class="jwpf-instagram-images">';
			for ($i = 0; $i < $count; $i++) {
				// break if total items less than count
				if ($i == $total_items) {
					break;
				}
				if ($layout_type == 'classic') {
					$output .= '<li class="jwpf-instagram-image">';
					$output .= '<div class="jwpf-instagram-classic-content-wrap">';
					if (in_array('author', $show_stats)) {
						$output .= '<div class="addon-instagram-item-author-wrap">';
						$author_image = (isset($items[$i]->user->profile_picture) && $items[$i]->user->profile_picture) ? $items[$i]->user->profile_picture : false;

						$author_name = false;
						if (isset($items[$i]->user->full_name) && $items[$i]->user->full_name) {
							$author_name = $items[$i]->user->full_name;
						} elseif (isset($items[$i]->user->username) && $items[$i]->user->username) {
							$author_name = $items[$i]->user->username;
						}

						$output .= '<div class="addon-instagram-author-info">';
						if ($author_image) {
							$output .= '<a class="instagram-author-image" href="' . $items[$i]->link . '" target="_blank"><img src="' . $author_image . '" alt="' . $author_name . '"></a>';
						}
						$output .= '<div class="instagram-author-meta-content">';
						if ($author_name) {
							$output .= '<a href="' . $items[$i]->link . '" target="_blank">' . $author_name . '</a>';
						}
						$output .= '<span>' . date('F j', $items[$i]->created_time) . '</span>';
						$output .= '</div>'; //.instagram-author-meta-content
						$output .= '</div>'; //.addon-instagram-author-info
						$output .= '<a class="instagram-redirect-link" href="' . $items[$i]->link . '" target="_blank"><i class="fa fa-instagram"></i></a>';
						$output .= '</div>'; //.addon-instagram-item-author-wrap
					}
					$output .= (!empty($items[$i]->images->standard_resolution->url)) ? '<a class="jwpf-instagram-gallery-btn" href="' . $items[$i]->images->standard_resolution->url . '">' : '';
					$output .= '<div class="addon-instagram-image-wrap">';
					$output .= '<img class="instagram-image jwpf-img-responsive" src="' . $items[$i]->images->standard_resolution->url . '" alt="">';
					$output .= '</div>'; //.addon-instagram-image-wrap
					if (in_array('likes', $show_stats) || in_array('comments', $show_stats) || in_array('caption', $show_stats)) {

						$output .= '<div class="addon-instagram-classic-meta-content">';
						if (in_array('likes', $show_stats) || in_array('comments', $show_stats)) {
							// get stats
							$likes = (isset($items[$i]->likes->count) && $items[$i]->likes->count) ? $items[$i]->likes->count : 0;
							$comments = (isset($items[$i]->comments->count) && $items[$i]->comments->count) ? $items[$i]->comments->count : 0;

							$output .= '<div class="addon-instagram-item-info">';
							if (in_array('likes', $show_stats)) {
								$output .= '<span class="addon-instagram-item-likes"><i class="fa fa-heart-o"></i><span class="intagram-like-number">' . $likes . '</span></span>';
							}
							if (in_array('comments', $show_stats)) {
								$output .= '<span class="addon-instagram-item-comments"><i class="fa fa-comment-o"></i><span class="intagram-comment-number">' . $comments . '</span></span>';
							}
							$output .= '</div>'; //.addon-instagram-item-info
						}
						if (in_array('caption', $show_stats)) {
							$caption_txt = (isset($items[$i]->caption->text) && $items[$i]->caption->text) ? $items[$i]->caption->text : false;
							if ($caption_txt) {
								$output .= '<div class="addon-instagram-caption">';
								$output .= '<p><strong>' . $items[$i]->user->username . ' </strong>' . JHtmlString::truncate(strip_tags($caption_txt), 100) . '</p>';
								$output .= '</div>'; //.addon-instagram-item-info
							}
						}
						$output .= '</div>'; //.addon-instagram-classic-meta-content
					}
					$output .= (!empty($items[$i]->images->standard_resolution->url)) ? '</a>' : '';
					$output .= '</div>'; //.jwpf-instagram-classic-content-wrap
					$output .= '</li>';//.jwpf-instagram-image
				} else {
					$output .= '<li class="jwpf-instagram-image">';
					$output .= (!empty($items[$i]->images->standard_resolution->url)) ? '<a class="jwpf-instagram-gallery-btn" href="' . $items[$i]->images->standard_resolution->url . '">' : '';
					$output .= '<div class="addon-instagram-item-wrap">';
					if (in_array('likes', $show_stats) || in_array('comments', $show_stats) || in_array('author', $show_stats) || in_array('caption', $show_stats)) {
						$output .= '<div class="addon-instagram-item-overlay">';
						$output .= '<div class="addon-instagram-meta-content">';
						if (in_array('likes', $show_stats) || in_array('comments', $show_stats)) {
							// get stats
							$likes = (isset($items[$i]->likes->count) && $items[$i]->likes->count) ? $items[$i]->likes->count : 0;
							$comments = (isset($items[$i]->comments->count) && $items[$i]->comments->count) ? $items[$i]->comments->count : 0;

							$output .= '<div class="addon-instagram-item-info">';
							if (in_array('likes', $show_stats)) {
								$output .= '<span class="addon-instagram-item-likes"><i class="fa fa-heart-o"></i><span class="intagram-like-number">' . $likes . '</span></span>';
							}
							if (in_array('comments', $show_stats)) {
								$output .= '<span class="addon-instagram-item-comments"><i class="fa fa-comment-o"></i><span class="intagram-comment-number">' . $comments . '</span></span>';
							}
							$output .= '</div>'; //.addon-instagram-item-info
						}
						if (in_array('caption', $show_stats)) {
							$caption_txt = (isset($items[$i]->caption->text) && $items[$i]->caption->text) ? $items[$i]->caption->text : false;
							if ($caption_txt) {
								$output .= '<div class="addon-instagram-caption">';
								$output .= '<p>' . JHtmlString::truncate(strip_tags($caption_txt), 100) . '</p>';
								$output .= '</div>'; //.addon-instagram-caption
							}
						}
						$output .= '</div>'; //.addon-instagram-meta-content
						$output .= '</div>'; //.addon-instagram-item-overlay
					}

					$output .= '<div class="addon-instagram-image-wrap">';
					$output .= '<img class="instagram-image jwpf-img-responsive" src="' . $items[$i]->images->standard_resolution->url . '" alt="">';
					$output .= '</div>'; //.addon-instagram-image-wrap

					$output .= '</div>'; //.addon-instagram-item-wrap

					$output .= (!empty($items[$i]->images->standard_resolution->url)) ? '</a>' : '';
					$output .= '</li>';//.jwpf-instagram-image
				}
			}
			$output .= '</ul>'; //.jwpf-instagram-images
		}

		$output .= '</div>'; //.jwpf-addon-instagram-gallery
		return $output;
	}

	public function css()
	{
		$settings = $this->addon->settings;
		$addon_id = '#jwpf-addon-' . $this->addon->id;
		$thumb_per_row = (isset($settings->thumb_per_row) && $settings->thumb_per_row) ? $settings->thumb_per_row : 4;
		$item_height = (isset($settings->item_height) && $settings->item_height) ? $settings->item_height : '';
		$layout_type = (isset($settings->layout_type) && $settings->layout_type) ? $settings->layout_type : 'default';

		$width = round((100 / $thumb_per_row), 4);

		$css = '';
		if ($thumb_per_row) {
			$css .= $addon_id . ' .jwpf-instagram-images .jwpf-instagram-image {';
			$css .= 'width:' . $width . '%;';
			$css .= 'height:auto;';
			$css .= '}';
			if ($layout_type == 'classic') {
				$css .= $addon_id . ' .jwpf-instagram-images .jwpf-instagram-image {';
				$css .= 'flex: 0 0 ' . $width . '%;';
				$css .= '}';
			}
			if ($thumb_per_row > 3) {
				$css .= '@media only screen and (max-width: 992px) {';
				$css .= $addon_id . ' .jwpf-instagram-images .jwpf-instagram-image {';
				$css .= 'flex: 0 0 33.3333%;';
				$css .= 'width: 33.3333%;';
				$css .= '}';
				$css .= '}';
			}
			$css .= '@media only screen and (max-width: 767px) {';
			$css .= $addon_id . ' .jwpf-instagram-images .jwpf-instagram-image {';
			$css .= 'flex: 0 0 50%;';
			$css .= 'width: 50%;';
			$css .= '}';
			$css .= '}';
			$css .= '@media only screen and (max-width: 480px) {';
			$css .= $addon_id . ' .jwpf-instagram-images .jwpf-instagram-image {';
			$css .= 'flex: 0 0 100%;';
			$css .= 'width: 100%;';
			$css .= '}';
			$css .= '}';
		}

		return $css;
	}

	public function stylesheets()
	{
		return array(JURI::base(true) . '/components/com_jwpagefactory/assets/css/magnific-popup.css');
	}

	public function scripts()
	{
		return array(JURI::base(true) . '/components/com_jwpagefactory/assets/js/jquery.magnific-popup.min.js');
	}

	public function js()
	{
		$addon_id = '#jwpf-addon-' . $this->addon->id;
		$js = 'jQuery(function($){
				$("' . $addon_id . ' .jwpf-instagram-gallery-btn").magnificPopup({
					type: "image",
					gallery: {
						enabled: true
					  },
				});
			});
			';

		return $js;
	}

	private function getImages()
	{
		$settings = $this->addon->settings;

		jimport('joomla.filesystem.folder');
		$cache_path = JPATH_CACHE . '/com_jwpagefactory/addons/addon-' . $this->addon->id;
		$cache_file = $cache_path . '/instagram.json';

		if (!file_exists($cache_path)) {
			JFolder::create($cache_path, 0755);
		}

		if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 60 * 30))) {
			$images = file_get_contents($cache_file);
		} else {
			$user_id = (isset($settings->user_id) && $settings->user_id) ? $settings->user_id : '7583938101';
			$access_token = (isset($settings->access_token) && $settings->access_token) ? $settings->access_token : '7583938101.1677ed0.99f074be46624ffa97f1eb27d690f657';
			$item_resource = (isset($settings->item_resource) && $settings->item_resource) ? $settings->item_resource : 'userid';
			$hashtag = (isset($settings->hashtag) && $settings->hashtag) ? $settings->hashtag : '';
			$limit = (isset($settings->limit) && $settings->limit) ? $settings->limit : '3';
			if (!$user_id || !$access_token) {
				echo '<p class="alert alert-warning">' . JText::_('COM_JWPAGEFACTORY_ADDON_INSTAGRAM_ERROR') . '</p>';
				return;
			}

			if ($item_resource == 'hashtag' && $hashtag) {
				$api = "https://api.instagram.com/v1/tags/" . $hashtag . "/media/recent/?access_token=" . $access_token . "&count=" . $limit;
			} else {
				$api = "https://api.instagram.com/v1/users/" . $user_id . "/media/recent/?access_token=" . $access_token . "&count=" . $limit;
			}

			if (ini_get('allow_url_fopen')) {
				$images = file_get_contents($api);
				file_put_contents($cache_file, $images, LOCK_EX);
			} else {
				$images = $this->curl($api);
			}
		}
		$json = json_decode($images);
		if (isset($json->data)) {
			return $json->data;
		}

		return array();
	}

	function curl($url)
	{
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL, $url);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
		if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
			// Windows only over-ride
			curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
		}
		$data = curl_exec($ch);
		curl_close($ch);
		return $data;
	}

}